Mr smith has little acquaintance_____modern poetry while he has a wide knowledge ___ painting.When it comes _____music,he has a talent_______it.
Start out right away, _____ you’ll miss the first train.
Tom went off to the EXPO Garden with his friends, _____ an exciting day of discovering the unique (独特的) culture of each nation.
I regret _____ that I am unable to help you.
---Did the book give the information you need?--- Yes. But _____ it, I had to read the entire book.
My advisor encouraged _____ a summer course to improve my writing skills.